CN104453768B - Three-slip continuous oil pipe hanger - Google Patents
Three-slip continuous oil pipe hanger Download PDFInfo
- Publication number
- CN104453768B CN104453768B CN201410628956.6A CN201410628956A CN104453768B CN 104453768 B CN104453768 B CN 104453768B CN 201410628956 A CN201410628956 A CN 201410628956A CN 104453768 B CN104453768 B CN 104453768B
- Authority
- CN
- China
- Prior art keywords
- slips
- hole
- bevel gear
- jackscrew
- horizontal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 241000239290 Araneae Species 0.000 claims description 18
- 238000012856 packing Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 241000191291 Abies alba Species 0.000 description 1
- 241000254175 Anthonomus grandis Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/04—Casing heads; Suspending casings or tubings in well heads
- E21B33/0422—Casing heads; Suspending casings or tubings in well heads a suspended tubing or casing being gripped by a slip or an internally serrated member
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Sealing Devices (AREA)
Abstract
The invention provides a three-slip continuous oil pipe hanger. The lower end of a flange on the three-slip continuous oil pipe hanger is connected to the upper end of a body in a sealed mode. A step-shaped perpendicular through hole is formed in the body. A sealing rubber cylinder assembly and a guide base are arranged in the step-shaped perpendicular through hole. A conical slip base is arranged above the guide base. A cylindrical large bevel gear is installed at the lower end of the conical slip base. Rectangular guide holes are evenly distributed in the side wall of the conical slip base. Conical slips arranged in the conical slip base are located inside the rectangular guide holes. Slip guide bases are fixed to the back faces of the conical slips respectively and are located in the rectangular guide holes. The cylindrical large bevel gear drives the slip guide bases to move up and down through screw thread fit so that the conical slips can be driven to move up and down. A small bevel gear meshed with the cylindrical large bevel gear is arranged in the middle of the body. A continuous oil pipe is clamped by rotating the small bevel gear to make the slips synchronously move, and therefore the operation procedures are reduced, and the production efficiency and safety are improved.
Description
Technical field
The invention belongs to oil gas field speed tubing string christmas power tool technical field is and in particular to a kind of three slips are continuous
Boll-weevil hanger.
Background technology
Have been widely used both at home and abroad at present coiled tubing hang realize speed tubing string recovered the oil or gas production produce.I.e. oil gas
Well is suspended on well head coiled tubing after the completion of continuous oil pipe operation, is recovered the oil with coiled tubing or gas production produces or carries out
Other operations.Using external band additional operations window construction it is necessary to be lowered in coiled tubing more than domestic coiled tubing hanger
Slips could be put into from operation window after reaching requirement depth, and open flow operation twice etc., not only complex operation, Er Qiecun need to be carried out
In potential safety hazard.
Content of the invention
Present invention solves the technical problem that: design a kind of three slips coiled tubing hangers, slips can be placed in advance in, and
It is manually operable slips to be synchronized with the movement clamping coiled tubing, thus reducing operating process, improve production efficiency and security.
The technical solution used in the present invention: a kind of three slips coiled tubing hangers, there is body and upper flange, upper flange
Lower end be sealedly connected on the upper end of body, described is formed with up big and down small step vertical through hole in vivo, and step is vertical
In through hole, there is cartridge assembly at the middle part shoulder seat of honour, and there is guide holder at the top shoulder seat of honour, is provided with conic clamp above guide holder
Watt seat；The bottom of tubular bevel gear wheel is arranged on the lower end of taper slip spider by bearing, and top is enclosed within the outer of taper slip spider
Enclose；Uniform three rectangle pilot holes on the side wall of described taper slip spider, are arranged on three lobe taper slips in taper slip spider
It is located at the inner side of three rectangle pilot holes respectively, and the back side of three lobe taper slips is respectively and fixedly provided with slips guide holder, and make three
Slips guide holder is located at three rectangles respectively and guides in the hole；Described tubular bevel gear wheel pass through on its inwall the internal thread that has with
The external screw thread cooperation that the slips guide holder back side has drives slips guide holder to move up and down along rectangle pilot hole, and then drives taper
The inwall that slips is close to taper slip spider moves up and down；The middle part of described body has three uniform horizontal bevel pinions of circumference
Hole and four horizontal top wire holes, and three horizontal bevel pinion hole positions are in the top of four horizontal top wire holes；Described three levels
All it is sealed and installed with bevel pinion in small bevel gear wheel bore, and three bevel pinions are all meshed with tubular bevel gear wheel；Described four
All it is sealed and installed with jackscrew in individual horizontal top wire hole, and the inner of jackscrew acts on the upper end of cartridge assembly；Described upper method
Blue centre bore lower end is installed with fairlead, and the endoporus of fairlead is in the same size with the pilot hole in guide holder central authorities.
It is set with jackscrew packing assembly, jackscrew external rear wall is arranged on compression spiral shell by external screw thread in the middle part of described jackscrew outer wall
In female internal thread hole, the external screw thread that clamp nut passes through have on its outer wall is arranged on the internal thread hole of horizontal top wire hole rear end
In, and jackscrew packing assembly sealing jackscrew is compressed by clamp nut.
The described upper end of cartridge assembly and the lower end of guide holder cooperatively form ring-type " v " type groove, described jackscrew
Front end has " v " type inclined-plane, and makes " v " type ramp effect on the bottom surface of " v " type groove.
The bottom of described body is formed with horizontal through hole, and the bottom insertion of horizontal through hole and step vertical through hole.
The flange of the flange sealing surface, the flange sealing surface of body lower end and horizontal through hole outer end of described upper flange upper end is close
It is mounted on the protecting cover of installation, there is suspension ring on protecting cover, and the flange sealing surface of upper flange upper end on front cover.
The present invention has the advantage that and effect:
1, present invention achieves being pre-placed slips before coiled tubing decentralization, thus reducing operating process, improves production
Efficiency and security.
2nd, the present invention adopts bevel gear structure to drive three lobe taper slips it is ensured that the synchronism of slips motion and gravity are from card
Tightly, the more efficient accuracy that ensure that suspension, reliability.
3rd, the present invention adopts manually operated jackscrew to seal coiled tubing, and using upper and lower two-stage sealing form it is ensured that close
The security of envelope.
Brief description
Fig. 1 is the construction profile figure of the present invention,
Fig. 2 is the d-d sectional view of Fig. 1,
Fig. 3 is internal structure stereogram of the present invention,
Fig. 4 is the m-m sectional view of Fig. 1,
Fig. 5 is the n-n sectional view of Fig. 1,
Fig. 6 is the p-p sectional view of Fig. 5,
Fig. 7 is upper flange inner seal sleeve structural representation of the present invention,
Fig. 8 installs and uses state diagram for the present invention.
Specific embodiment
1,2,3,4,5,6,7,8 a kind of embodiment of the present invention is described below in conjunction with the accompanying drawings.
A kind of three slips coiled tubing hangers, have body 1 and upper flange 2, and the lower end of upper flange 2 is sealedly connected on this
The upper end of body 1；It is formed with up big and down small step vertical through hole 3, middle part shoulder in step vertical through hole 3 in described body 1
There is cartridge assembly 4 at the seat of honour, and there is guide holder 5 at the top shoulder seat of honour, is provided with taper slip spider 6 above guide holder 5；Tubular is big
The bottom of bevel gear 7 is arranged on the lower end of taper slip spider 6 by bearing 8, and top is enclosed within the periphery of taper slip spider 6；Described
Uniform three rectangle pilot holes 9 on the side wall of taper slip spider 6, are arranged on 10 points of three lobe taper slips in taper slip spider 6
Not Wei Yu three rectangle pilot holes 9 inner side, and the back side of three lobe taper slips 10 is respectively and fixedly provided with slips guide holder 11, and makes three
Individual slips guide holder 11 is located in three rectangle pilot holes 9 respectively；Described tubular bevel gear wheel 7 is interior by have on its inwall
External screw thread 13 cooperation that screw thread 12 is had with slips guide holder 11 back side drives slips guide holder 11 to move down along along rectangle pilot hole 9
Dynamic, and then drive the inwall that taper slips 10 is close to taper slip spider 6 to move up and down；The middle part of described body 1 has circumference all
Three horizontal small bevel gear wheel bore 14 of cloth and four horizontal top wire holes 15, and three horizontal small bevel gear wheel bore 14 are located at four levels
The top of top wire hole 15；All it is sealed and installed with bevel pinion 16 in described three horizontal small bevel gear wheel bore 14, and three small bevel gear
Wheel 16 is all meshed with tubular bevel gear wheel 7；All it is sealed and installed with jackscrew 17 in described four horizontal top wire holes 15, and jackscrew 17
The inner act on the upper end of cartridge assembly 4；Described upper flange 2 centre bore lower end is installed with fairlead 18, and fairlead
18 endoporus is in the same size with the pilot hole in guide holder 5 central authorities.
It is set with jackscrew packing assembly 23, jackscrew 17 external rear wall is arranged on by external screw thread in the middle part of described jackscrew 17 outer wall
In the internal thread hole of clamp nut 24, after clamp nut 24 is arranged on horizontal top wire hole 15 by the external screw thread having on its outer wall
In the internal thread hole at end, and jackscrew packing assembly 23 sealing jackscrew 17 is compressed by clamp nut 24.
The upper end of described cartridge assembly 4 and the lower end of guide holder 5 cooperatively form ring-type " v " type groove 19, described top
The front end of silk 17 has " v " type inclined-plane, and makes " v " type ramp effect on the bottom surface of " v " type groove 19.
The bottom of described body 1 is formed with horizontal through hole 20, and horizontal through hole 20 is passed through with the bottom of step vertical through hole 3
Logical.The flange of the flange sealing surface, the flange sealing surface of body 1 lower end and horizontal through hole 20 outer end of described upper flange 2 upper end is close
It is mounted on the protecting cover 21 of installation, there is suspension ring 22 on protecting cover 21, and the flange sealing surface of upper flange 2 upper end on front cover.
Operation principle: rotate bevel pinion 16 and drive tubular bevel gear wheel 7 to rotate, tubular bevel gear wheel 7 is joined by screw thread
Crossed belt moves slips guide holder 11 and moves up and down along rectangle pilot hole 9, and then drives taper slips 10 to be close to the interior of taper slip spider 6
Wall moves up and down, and so that three lobe taper slips 10 is clamped or open；Rotating jackscrew 17 makes " v " type ramp effect of its front end face exist
On the bottom surface of " v " type groove 19, that is, act on the upper end of cartridge assembly 4, compression seal packing element assembly 4 distending is realized close
Envelope.
Installation method: rotate counterclockwise three bevel pinions 16 before hanger of the present invention is installed till turning motionless,
Three lobe taper slips 10 are made to be in open configuration；Rotate counterclockwise four jackscrews 17 till turning motionless, make cartridge
Assembly 4 is in free state.Then hanger 27 of the present invention, preventer are installed successively from bottom to up on well head main valve 26, prevents
Spray box, injection is first-class, and operation main equipment is coild tubing unit.On hanger horizontal through hole 20 outer end side flange face of the present invention
Flap type 28 is installed.
Hang coiled tubing: with continuous oil pipe operation equipment by required depth under coiled tubing lower going-into-well during operation,
Start to hang coiled tubing, rotate three bevel pinions 16 clockwise respectively till turning motionless with instrument, and continuously oil
Tube injection head slowly pushes, and coiled tubing is clamped by three lobe taper slips 10 automatically, is rotated further by No. 16 2 locks of three bevel pinions
Tight three lobe taper slips 10, so far, coiled tubing hangs and completes, automatic clamping under coiled tubing Action of Gravity Field.
Sealing coiled tubing: press diagonal method clockwise with instrument and rotate four jackscrews 17, each amount of feeding of jackscrew does not surpass
Cross 3mm (groove, ruling span 3mm are had on jackscrew), till manpower turns motionless, by jackscrew front end compression seal packing element group
Part 4 distending realizes the sealing to coiled tubing.After coiled tubing sealed reliable, remove the equipment such as preventer.Then on dismantling
Flange 2, takes out fairlead 18, cuts off coiled tubing, sheared edge manually at beyond body 1 upper flange sealing surface 210-215mm
Polish smooth, upper flange inner seal sleeve 25 is contained in upper flange endoporus, then upper flange 2 is installed get final product secondary seal.
Upper flange 2 is installed and connects christmas tree 29, connect nitrogen car, nitrogen is squeezed into down-hole by coiled tubing and pushes up
Drive oil well pipe bottom blanking plug, Oil/gas Well resumes production.
Above-described embodiment, simply presently preferred embodiments of the present invention, be not used for limiting the scope of the present invention, thus all with this
The equivalent variations that content described in invention claim is done, all should be included within scope of the invention as claimed.
Claims (5)
1. a kind of three slips coiled tubing hangers, have body (1) and upper flange (2), and the lower end of upper flange (2) is tightly connected
In the upper end of body (1) it is characterised in that: be formed with up big and down small step vertical through hole (3), step in described body (1)
In shape vertical through hole (3), there is cartridge assembly (4) at the middle part shoulder seat of honour, and there are guide holder (5), guide holder in the top shoulder seat of honour
(5) taper slip spider (6) is installed above；The bottom of tubular bevel gear wheel (7) is arranged on taper slip spider by bearing (8)
(6) lower end, top is enclosed within the periphery of taper slip spider (6)；On the side wall of described taper slip spider (6), uniform three rectangles are led
To hole (9), three lobes taper slips (10) being arranged in taper slip spider (6) are located at the interior of three rectangle pilot holes (9) respectively
Side, and the back side of three lobes taper slips (10) is respectively and fixedly provided with slips guide holder (11), and make three slips guide holders (11) respectively
In three rectangle pilot holes (9)；Described tubular bevel gear wheel (7) passes through internal thread (12) and the slips having on its inwall
External screw thread (13) cooperation that guide holder (11) back side has drives slips guide holder (11) to move up and down along rectangle pilot hole (9),
And then drive the inwall that three lobes taper slips (10) are close to taper slip spider (6) to move up and down；The middle part of described body (1) has
Three uniform horizontal small bevel gear wheel bore (14) of circumference and four horizontal top wire holes (15), and three horizontal small bevel gear wheel bore (14)
Top positioned at four horizontal top wire holes (15)；All it is sealed and installed with bevel pinion in described three horizontal small bevel gear wheel bore (14)
, and three bevel pinions (16) are all meshed with tubular bevel gear wheel (7) (16)；All close in described four horizontal top wire holes (15)
Envelope is provided with jackscrew (17), and the inner of jackscrew (17) acts on the upper end of cartridge assembly (4)；In described upper flange (2)
Heart hole lower end is installed with fairlead (18), and the endoporus of fairlead (18) is in the same size with the pilot hole in guide holder (5) central authorities.
2. three slips coiled tubing hangers according to claim 1 it is characterised in that: in the middle part of described jackscrew (17) outer wall
It is set with jackscrew packing assembly (23), jackscrew (17) external rear wall is arranged on the internal thread hole of clamp nut (24) by external screw thread
In, the external screw thread that clamp nut (24) passes through to have on its outer wall is arranged in the internal thread hole of horizontal top wire hole (15) rear end,
And jackscrew packing assembly (23) sealing jackscrew (17) is compressed by clamp nut (24).
3. three slips coiled tubing hangers according to claim 2 it is characterised in that: described cartridge assembly (4)
The lower end of upper end and guide holder (5) cooperatively form ring-type " v " type groove (19), the front end of described jackscrew (17) has " v " type
Inclined-plane, and make " v " type ramp effect on the bottom surface of " v " type groove (19).
4. three slips coiled tubing hangers according to claim 1 or 2 or 3 it is characterised in that: described body (1)
Bottom is formed with horizontal through hole (20), and the bottom insertion of horizontal through hole (20) and step vertical through hole (3).
5. three slips coiled tubing hangers according to claim 4 it is characterised in that: described upper flange (2) upper end
It is mounted on the flange sealing surface of flange sealing surface, the flange sealing surface of body (1) lower end and horizontal through hole (20) outer end protecting
On the protecting cover (21) installed on lid (21), and the flange sealing surface of upper flange (2) upper end, there are suspension ring (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410628956.6A CN104453768B (en) | 2014-11-10 | 2014-11-10 | Three-slip continuous oil pipe hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410628956.6A CN104453768B (en) | 2014-11-10 | 2014-11-10 | Three-slip continuous oil pipe hanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104453768A CN104453768A (en) | 2015-03-25 |
| CN104453768B true CN104453768B (en) | 2017-01-18 |
Family
ID=52900444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410628956.6A Active CN104453768B (en) | 2014-11-10 | 2014-11-10 | Three-slip continuous oil pipe hanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104453768B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255401B (en) * | 2018-03-12 | 2021-11-23 | 江苏瑞亿石油机械有限公司 | Petroleum industry wellhead repairing method |
| CN112696169B (en) * | 2021-03-24 | 2021-05-28 | 东营华辰石油装备有限公司 | Slip type casing head |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201250626Y (en) * | 2008-09-09 | 2009-06-03 | 中国石油集团川庆钻探工程有限公司井下作业公司 | Wellhead suspension device adopting coiled tubing as production string |
| CN202990942U (en) * | 2012-12-26 | 2013-06-12 | 江苏宏泰石化机械有限公司 | Double-seal Christmas tree for conveniently mounting coiled tubing |
| CN203050597U (en) * | 2013-01-15 | 2013-07-10 | 宝鸡市赛孚石油机械有限公司 | Suspension device of coiled tubing |
| CN203374235U (en) * | 2013-07-01 | 2014-01-01 | 中国石油化工股份有限公司 | Velocity string well mouth sealing and hanging device |
| CN204312013U (en) * | 2014-11-10 | 2015-05-06 | 宝鸡市赛孚石油机械有限公司 | Three slips coiled tubing hangers |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6588510B2 (en) * | 2001-09-17 | 2003-07-08 | Duhn Oil Tool, Inc. | Coil tubing hanger system |
| US7069987B2 (en) * | 2003-02-07 | 2006-07-04 | Stream-Flo Industries, Ltd. | Casing adapter tool for well servicing |
-
2014
- 2014-11-10 CN CN201410628956.6A patent/CN104453768B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201250626Y (en) * | 2008-09-09 | 2009-06-03 | 中国石油集团川庆钻探工程有限公司井下作业公司 | Wellhead suspension device adopting coiled tubing as production string |
| CN202990942U (en) * | 2012-12-26 | 2013-06-12 | 江苏宏泰石化机械有限公司 | Double-seal Christmas tree for conveniently mounting coiled tubing |
| CN203050597U (en) * | 2013-01-15 | 2013-07-10 | 宝鸡市赛孚石油机械有限公司 | Suspension device of coiled tubing |
| CN203374235U (en) * | 2013-07-01 | 2014-01-01 | 中国石油化工股份有限公司 | Velocity string well mouth sealing and hanging device |
| CN204312013U (en) * | 2014-11-10 | 2015-05-06 | 宝鸡市赛孚石油机械有限公司 | Three slips coiled tubing hangers |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104453768A (en) | 2015-03-25 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 721306 Gaoxin 19 Road, Baoji high tech Development Zone, Shaanxi Province Patentee after: Baoji Saifu Petroleum Machinery Co.,Ltd. Country or region after: China Address before: 721013 Nineteenth High-tech Road, Baoji High-tech Zone, Shaanxi Province Patentee before: BAOJI SAFE PETROLEUM MACHINERY Co.,Ltd. Country or region before: China |